pacer: make pacer more flexible

Make the pacer package more flexible by extracting the pace calculation
functions into a separate interface. This also allows to move features
that require the fs package like logging and custom errors into the fs
package.

Also add a RetryAfterError sentinel error that can be used to signal a
desired retry time to the Calculator.
This commit is contained in:
Fabian Möller
2019-02-09 21:52:15 +01:00
committed by Nick Craig-Wood
parent 9ed721a3f6
commit 61616ba864
21 changed files with 822 additions and 631 deletions

View File

@@ -65,7 +65,7 @@ type Fs struct {
opt Options // parsed options
features *fs.Features // optional features
srv *rest.Client // the connection to the server
pacer *pacer.Pacer // To pace and retry the API calls
pacer *fs.Pacer // To pace and retry the API calls
session UserSessionInfo // contains the session data
dirCache *dircache.DirCache // Map of directory path to directory id
}
@@ -144,7 +144,7 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
root: root,
opt: *opt,
srv: rest.NewClient(fshttp.NewClient(fs.Config)).SetErrorHandler(errorHandler),
pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
pacer: fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
}
f.dirCache = dircache.New(root, "0", f)